9. Go to a sumo tournament

People often dismiss sumo as just a bunch of fat guys slapping each other about, but it's so much more than that. Go along to a bout and soak up the electric atmosphere while wallowing in the pomp and ceremony. The wrestlers may be a bit on the pudgy side, but the truth is that it's mostly muscle and they're far more agile than you might imagine. You'll quickly find yourself engrossed and cheering your man till he gets pushed out of the ring or slips up and slams into the ground. And when these guys hit the ground, you'd better hold on to your seat as there's a chance it might register on the Richter scale.